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Building Records from 1984 Morgan Hill Earthquake

by M. J. Huang, California Div of Mines &, Geology, Sacramento, CA, USA,
A. F. Shakal, California Div of Mines &, Geology, Sacramento, CA, USA,
R. W. Sherburne, California Div of Mines &, Geology, Sacramento, CA, USA,
R. V. Nutt, California Div of Mines &, Geology, Sacramento, CA, USA,



Document Type: Proceeding Paper

Part of: Dynamic Response of Structures

Abstract:

The dynamic response of 23 structures instrumented by the California Strong Motion Instrumentation Program was recorded during the magnitude 6. 2 (ML) Morgan Hill earthquake of 24 April 1984. The structures range in complexity from a single-story warehouse to a 13-story office building. The strong motion records from seven buildings and one bridge have been digitized and processed. Maximum horizontal ground accelerations at the buildings were in the range 0. 03-0. 11 g; maximum roof accelerations were 0. 17-0. 41 g. Processing of the digitized data indicates that the maximum horizontal displacements at roof level ranged from 1 to 19 centimeters. Significant structural response lasted for less than 35 seconds for most buildings. However, the steel-frame Santa Clara County Office Building had significant response for about 80 seconds.

Subject Headings: Earthquakes | Ground motion | Dynamic structural analysis | Data analysis | Structural response | Steel frames | Roofs | California | United States

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